Improvement in iron pavements



.of New York, have invented a new and useful Improvement in IronPavements, of which the y vertical cross-section of Fig. l, taken on theUNITED STATES PATENT OFFICE.

JOHN vANDERcAR, OE BROOKLYN, AssieNoR To MARTIN vAN BUREN,

' OE NEW YORK7 N. Y.

IMPROVEMENT IN |RoN PAvEMEN-rs.

Specification forming part of Letters latent No. 1116,41 3, datedJanuary 13, 1874; application filed November 15, 1873.

To all whom it may concern:

Be it known that I, JOHN VANDEROAR, of Brooklyn, in the county of Kingsand State following is a specification:

The invention Will first be fully described, and then pointed out in theclaim.

In the accompanying drawing, Figure lis a top view of one of thesections. Fig. 2 is a line ,fr m.

Similar letters of reference indicate corresponding parts.

A represents the section. B are chambers, which are to be iilled withcement, sand, or other suitable material. (l is the bottom, which restsupon the foundation of the road. D is a iiange on the bottom of thesection. This flange may run the whole length of the section, or onlypart Way, or it may be made in short pieces, and thus form atbrokenflange. When the section is placed on the roadway this flange isdesigned to be embedded in the foundation, and thereby7 prevent thesection from tipping or getting displaced by the wear or uneven treadupon it. These sections, each With a tight bottom, have a broad surface,and

are not likely to become displaced, but they maybe made to lock togetherso as to support each other. y

The chambers may be filled with concrete or asphaltic cement, which willharden by exposure to the air, or they may be filled with sand orgravel. In either case, the chambers.

will give a good foothold for horses, and prevent the constant slippingwhich strains and ruins so many horses in frostyweather. These chambersmaybe eight or ten inches in depth, and may be iilled with Wood, ifdesired.

One main advantage is that a pavement formed of these sections may bereadily taken up for putting down water or gas pipes, and the pavementwill Ilot be injured or dislignred thereby.

Having thus described my invention, I claim as new and desire to secureby Letters Pat-

